Print Email Facebook Twitter Thermo-elastic optical coherence tomography Title Thermo-elastic optical coherence tomography Author Wang, Tianshi (Erasmus MC) Pfeiffer, Tom (University of Lübeck) Wu, Min (Erasmus MC) Wieser, Wolfgang (Optores GmbH) Amenta, Gaetano (Erasmus MC) Draxinger, Wolfgang (University of Lübeck) van der Steen, A.F.W. (TU Delft ImPhys/Acoustical Wavefield Imaging; Erasmus MC; Chinese Academy of Sciences) Huber, Robert (University of Lübeck) Van Soest, Gijs (Erasmus MC) Date 2017-09-01 Abstract The absorption of nanosecond laser pulses induces rapid thermo-elastic deformation in tissue. A sub-micrometer scale displacement occurs within a few microseconds after the pulse arrival. In this Letter, we investigate the laser-induced thermo-elastic deformation using a 1.5 MHz phase-sensitive optical coherence tomography (OCT) system. A displacement image can be reconstructed, which enables a new modality of phase-sensitive OCT, called thermo-elastic OCT. An analysis of the results shows that the optical absorption is a dominating factor for the displacement. Thermo-elastic OCT is capable of visualizing inclusions that do not appear on the structural OCT image, providing additional tissue type information. To reference this document use: http://resolver.tudelft.nl/uuid:a817cd87-749e-4747-ac86-ed3e29200b43 DOI https://doi.org/10.1364/OL.42.003466 ISSN 0146-9592 Source Optics Letters, 42 (17), 3466-3469 Part of collection Institutional Repository Document type journal article Rights © 2017 Tianshi Wang, Tom Pfeiffer, Min Wu, Wolfgang Wieser, Gaetano Amenta, Wolfgang Draxinger, A.F.W. van der Steen, Robert Huber, Gijs Van Soest Files PDF ol_42_17_3466.pdf 1.69 MB Close viewer /islandora/object/uuid:a817cd87-749e-4747-ac86-ed3e29200b43/datastream/OBJ/view